Pole of reinforced concrete.



R. WOLLB. POLE OI REINFORCED CONCRETE.

APPLICATION IILED DEC. 8, 1910.

Patented May 23, 1911.

UNITED STATES PATENT OFFICE.

RUDOLF WOLLE, OF LEIPZIG, GERMANY.

POLE 01' REINFORCED CONCRETE.

Specification of Letters Patent.

Patented May 23, 1911.

Application filed December 6, 191i). Serial No. 595,95 5.

around these and frames provided between .the longitudinal bars and madeof angleiron or other similar material. These frames carry notches orrecesses into which the longitudinal bars are pressed by means of clips.By the frames the longitudinal bars' are directly adjusted to theexactly calculated position and are immovably retained therein duringthe stamping process.

The new pole is represented in the accom- ',refer to similar parts throubout the several views, in one form ofemb iment.

. The Figures 1 and 2'show the pole in front and side view. Fig. 3 is ascenograph of a part of the pole with the concrete broken away here-andthere in order to show the reinforcement. Fig. 4 is a section taken on.the direction of the line A to B of Fig." 1.

In the shown construction, the pole a has a rectangular cross-sectionand it is fitted at zthe broadside in the neutral sphere with theopenings 6. These latter are sufficiently big as to allow j to puttherein a foot, and to .climb' up to the top of the poles without-special expedients. .The openingspresent still the further advantagethat'a saving in material isinsured without affecting in the least thestrain-resisting "uality of the pole; they also allow the Win to passthrough, thus reducing the wind-pressure.

In the'corners of the pole thereare -ar-: ranged the iron-rods 0 passedlongitudinally through it.

its eight. Intermediate these longitudinal bars 0 are provided oblongframes e composed. of angle iron." Each frame comprises .;a horizontalflange and a vertical flange, the

panying drawing, in which similar letters" Besides in the centerartsofthe narrow sides of the pole are provided the lon itudlnal bars 11,extending to nearly half latter being bent at ri htangles at the cornersof the frame, whi e the former are here cut, so that rectangular cornerrecesses are formed within each horizontal flange. These recesses areadapted to accommodate bars 0, arranged opposite the bodies of, thehorizontal flanges, so as to obtain a firm bearing against the edgesthereof. ,The two shorter horizontal flanges'of ,thel oblong frame areprovided with-outer notches f adapted to .frame e, rods 0 are bound toeach other by odiment two wire-clipstare arranged at a down in form of ahookat one extremity and catching with this end over one longitudinalbar.

and therefrom outward y around a 1 the longitudinal bar's.- At thesecond extremity the wirecatches then again with one hook over alongitudinal bar. The diagonal section of the c ip arranged below framee, connects pressed into of foot holes, a series of embedded framesformed of angle iron, each frame com rising havin corner recesses, aseries of uprig t bars tted within the corner recesses and abuttingagainst the horizontal flan e-sections, and means above and below therames for binding the bars to each other.

2. A concrete pole provided with aseries of foot holes, a series ofembedded frames a bent upright flange and a horizonta flange havingcomer recesses and outer notches, a

cesses and abutting against the horizontal accommodate rods 03. -Above.and below each wire clips g which are passed around the longitudinalbars. In the shown form ofem- .70

small distance one above the, other and intermediate twoopeningsib, asthe case may. require. V Each clip consists of a wire bent twodiagonally opposed bars 0, while the' By means of the I 1. A concretepoleprovided with a series formed of angle iron, each frame com rising Vflange-sections, a second series of bars engag-- From. this rod the wireis passed toward the diagonally op osite bar a bent upright flange, anda'horizonta flan e first series of bars'fitted into the corner re ifigtl ietneteheejenimeans abdveiand beld v v, tielis,;wires eniwmpassingthe bfgr i the frgmeefor bmdmg the ba eof theffirs'tz', above the-frame'ea'nd dieigonallycbnnectmg 'semes to eachother. 1 one pair'of 6po'sed-bars and bmdin'gwke) 3'. A Concrete POIQPIOV-ldfid 'tvith afserieeencompassmg t e bars'belowjthe figme's anQ 5' Of foot holes; a, seriesbf embedded frames dia' anally connecting the second pgi'zbfifip 1J5:

" formed offingle i-ron, each framecomprisp0 d' bars.

' 'ing'p bentu'pright flange, and 'aih bgizontal I I flange havingcorner recesses, a; sQriefEjoi up 'Witnesses'r- V right bars fitted intothe cpmerrecesses ani RUDOLPH Fmdxm,

10 abutting against the hdnzontal flange-sec-' I ALBERT-IR. MoRAwnz;

I Copies 0'! this pdtent hay be dfbtaifieq for flve'cents each, byaddressing the Commissib'ner of retains; v Washington, -'.D .13.? 7'

